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Genetic analysis of agronomic characters in chickpea. II. Estimates of genetic variances from line × tester mating designs

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Relation http://oar.icrisat.org/2986/
http://dx.doi.org/10.1007/BF00215041
JA 1200
 
Title Genetic analysis of agronomic characters in chickpea. II. Estimates of genetic variances from line × tester mating designs
 
Creator Singh, Onkar
Gowda, C L L
Sethi, S C
Dasgupta, T
Kumar, J
Smithson, J B
 
Subject Chickpea
 
Description 30 line x tester experiments involving diverse chickpea (Cicer arietinum L.) germplasm were conducted over 8 years and 3 locations to determine the nature of the genetic variance for grain yield and related characters, and the effects of generation and environment on these genetic parameters. Days-to-flowering, 100-seed mass, and seeds per pod were predominantly under the control of additive genetic variance, while both additive and non-additive genetic components of variance were important for days-to-maturity, plant height, primary and secondary branches, pods per plant, and seed yield. The F(1) and F(2) generations were found equally useful in estimating the genetic variances for different characters because the generation did not significantly interact with genetic parameters in the majority of cases. Sites or seasons, on the other hand, showed significant interaction with genetic components of variances; additive variance showed a larger interaction with environments than non-additive variance. This indicated the importance of more than 1 site and/or season for unbiased estimation of the genetic components of variance. The results were compared with previous findings from diallel analyses.
 
Publisher Springer Verlag
 
Date 1993
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://oar.icrisat.org/2986/1/JA_1200.pdf
Singh, Onkar and Gowda, C L L and Sethi, S C and Dasgupta, T and Kumar, J and Smithson, J B (1993) Genetic analysis of agronomic characters in chickpea. II. Estimates of genetic variances from line × tester mating designs. TAG Theoretical and Applied Genetics, 85 (8). pp. 1010-1016. ISSN 1432-2242